Dear Prof Ripley

I am writing to you regarding a query on reporting the results of the repeated
measures ANOVA.
I am a dphil student from the dept. of Education at Oxford. I have used the
repeated measures design to analyse the effects of my intervention.I have a main
effect of time(pre and post test) and an interaction effect of time and group
and no main effect of group(three levels treatment, alternate treatment and no
treatment).

My problem is how do I explain why I do not have a main effect of group.
At pre-test all the three groups are similar with no significant difference.

Your help will be highly appreciated.Hoping for a response.
thnks and best regds Gopa



Gopa Nayak
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